Bookbinding-machine



C. GITZENDANNER.

BOOKBINDING MACHINE. APPLICATION man 11m15.191s. nENEwE'p Nov. 29, 1920.

`lantllted May 31, 1921.

3 SHEETS-SHEET lj@ Mw @Samt k3. PU

, rllw-- 1191-1 4 Q Us@ fs@ Q T u.

C. GITZENDANNER.

BOOKBINDING MACHINE. APPLICATloN FILED 1AN.25. 1919. RENEWED Nov. 29, 1920.

Patented May 31, 192.1.

3 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE.

CHARLES GITZENDALNNEER,' OF BROOKLYN, NEW .YORIQ ASSIGNOR T0 T. & B.

` SHERIDAN COMEANY, OF NEW YORK, N. Y., A CORPORATION. OF NEW YORK.

IBOOKBINDING-MACHINE.

Application r11/ed,ll'anuary25,r 1919, Serial No. 273,052. Renewed November 29, 1920.v Serial No. 427,208. i

To all lwhom t may concern:

Be it known'that 1, CHARLES GrrznN- Denman, a. citizen .of the United `States of America, land a resident` of Brooklyn, New York, have invented a new and useful .lm.

provementin Bookbinding-Machines, which invention is fully set` forth in the. following specification;

The .prese-nt invention Visfan improvementl ity` ofsheet or signature sources to a com-V mon; conveyer, that a signature will fail to befed to the conveyer aty some particular sheet `or, signature source (or a defective signature fed), whereupon the `signature group that. is rshort a` signature, or into which theimperfect signature lhas entered,

fwill be. defective...

Ithas been heretofore proposed to separate. such defective si,f2,'nat.ure` groups from the-perfect books by yprovidingl mechanism, controlled yby detecting devices A.associated with each sheet or signature source, for separating the defective-books from the perfect4 books at the delivery.` Machines of this typeareillustrated in patents to DeXterNo. 653,190,1{ing-N0- 1,041,806, and Juengst No. 1,126,026, lin each of which is` provided a main conveyor to,.whicli .sheets ,or signatures arewfedfrom: a. plurality of sources ofsheetfor signatureA supply, and a `detecting-.mechanismvfor each sheetor signature InrutheiDexter, and Juengsti machines, aprocession of stops are moved with the said conveyor, said' stops being operated by said detecting'. -means,.to-. separat-.ethedefective from the perfect books, and to distribute said7 books into two deliveries or iles.

-While such av separating orswitching construction is desirable, it has been found that, in a machine.employingi an `endless train of clamps Awhich! carry the groups of signa- Specication of Letters-Patent.

PatentedMay 31, 1921.

tures past the binding instrumentalities (such as illustrated in VBredenberg Patent No. 1,248,252), this switching or separating ofthe good from the defective books may be profit-ably eliminated, the groups ofy defective signatures being fedl to the train of traveling clamps with the perfect books, introduced into the appropriate clamps in the train, carried past the binding instrumen-- talities with the perfect books, and dis. charged into the same delivery withY the per- 4 fect books. Y

r1`he present invention resides particularly` in preventing the binding instrumentalities from operating on the groups of defective signatures, this prevention being effected by suitable means controlled and operatedk by suitable detecting mechanism, associated..` with each of lthe sources of sheet or signature supply. Various means for etfecting this object may be employed, but preferably the defectivegroup is slightly elevated just beforey it is grasped by the appropriate clamp in the endless chain,- with the result that the lower normally-projecting edge or back of the book is raised above the linezof operation of the trimming, roughening, gluing-,covering andthe other devices constituting the binding'A instrumentalities.- The.

group of .unbound defective signatures is discharged linto a common. delivery with theV perfect books.

By means of such a construction for vpreventing the operation of the. binding in.- strumentalities on the groups of defective signatures, the machine is greatly simplified, as the necessity forswitching oriseparating g devices, andthe complicatedmeans for opf.V erating the same (such as shownin..the Dexter, King, and Juengst patentsreferred to), is removed.

Any suitable ory desired detectingmechanism may be employed for preventing the. operation` of thebinding instrumentalitles onl the defective group, either of the.. feeler. variety, as shown in the Dextery or KingA atents or of the calinerino variet as disclosed' in the Juengst Patents 1,126,026 and 761,496. Preferably. a., plurality of stops or pivoted members are carried bythe main conveyer (as in Dexter), `one. of said stops or members being setl orl otherwise operated upon the absence` of a signature, or the presence` of a ydefective signature, so that, atan appropriate time corresponding to the moment when the defective group is being grasped by its clamp, said stop or member so set operates, through suitable mechanical or electrical connections, to slightly elevate said defective group. result is that the clamp closes on the defective group which has beenvelevated so that its back edge is above the normal line of movement'V of that of theV perfect books, whereupon the binding instrumentalities cannot act on the same.

I have shown herein, and preferably use, means for tripping the cover-feed mechanism. These means are preferably controlled by the stop that controls the elevation Vof the group of defective signatures,

and operates at an appropriate time to pre- Y vent the feed of a covei to said group.

-While the invention has been illustrated herein as embodied in a machine of the perfeet binding type, z'. e. one in which the backs of the books are trimmed, roughened, glued, and cover applied, the invention may beralso advantageouslyemployed in associ-ation with covering machines employing an endless train of clamps, but in which the signature-groups are stapled or wire-stitched be-` fore such groups are introduced into the clamps. y

The invention will be better understood by reference to the accompanying drawings, illustrating one embodiment of the inventive idea,and wherein `Figure 1 is a plan view of a book-binding and covering apparatus embodying the present invention; Y A

Fig. 2 is a diagrammatic elevation, indieating a signaturefgathering or Vassembling mechanism in'association with the book- 10Y binding and covering apparatus of Fig. 1 and showing'the application of the present invention; Y Y

Fig. 3 is an enlarged detail showing one electrical embodiment of the inventive idea; j

Fig. 4 is a detail,

Fig. 5 is a transverse section through one form of gathering machine, with various partsromitted, showing one form of detectingv mechanism i preferably employed; Vand Fig. 517 is a detail. K Referring to the drawings, wherein like reference numerals indicate like. parts, A

indicates anyV suitable or usual form of,`

atherino or assembling machine in which h 3'3 sheetsfor signatures are assembled in book form. Preferably there isy employed, however, the gathering machine described Vand illustrated in lthe application of Charles Gitzendanner Sr. No. 271,892, filed January 18` 1919. i Y i The groups of signaturesl are fed from this gathering machine to a book-binding and covering machine B preferably of the type illustrated in Bredenberg .Patent No;

1,248,252, dated Nov. 27, 1917,y wherein the The signature groups are fed into an endless train of traveling clamps from an infeed trough C along which they are progressed while Vsupported on their rear edges, as fully described in said patent. lnasmuch as the signature groups at the end of the gathering machineJ are resting flatwise on table 10 (Fig. 5), suitable means are provided for receiving said groups in that position, turning the VSame and depositing them on their rear edges in the infeed trough C. Any suitable means may be employed for this purpose but preferably there is employed the so-called rotary delivery 7 D described and illustrated in the said Gitzendanner application and in Fig. f1 herein.

The gathering machine ofthe Gitzendanner application, which is preferably employed, is provided with a plurality pf sources of sheet orsignature supply, as hoppers 11, from which the lowermost sheets Y or signatures are simultaneously withdrawn ,and depositedY on table 10, preferablyV said fixed jaw by a cani 18 operating throughVA rodV 19 in the well known manner described in Gitzendanner Patent No. 1,203,109. The whole gripper'construction is rocked from shaft 20 in any suitableor usual manner.

Preferably thev detecting mechanism for preventing the operation of Vthe bindingV inst 1umentalities onY defective signature groups is carried by said gripper arm 14, and preferably the detecting mechanism used is that disclosed in said Gitzendanner application. That detecting mechanism employs a bell-crank lever pivoted at 21 and having a short arm 22 and a long arm Said bell-crank lever is rocked on its pivot by the engagement Vof a stud 16', carried by movable j aw 1 6, with a similar stud carried by the short arm 22. PivotedV on saidv y gripper arm lll at 24k, near the upper end of the long arm 23 of the bellcrank lever, is a detecting or contact linger 25 which,

during the normal operation of the machine c. when signatures of a desired thickness are being withdrawn bythe grippers)` is moved by said bell-crank lever through an intermediate Vmember 26,'also Vpivoted at 24,

to pass through the opening betifieen two abutments 27 and 27'; These abutments are mounted on `an arm 28 carried by a sleeve encircling shaft 20, and said. arm is ad-V liustablyV `'connected tog a Asecond 4arm 29.

moves therewith; and, if no signature is Seized by the gripper awsor if one that is arm 29 upwardly and, through-rod l30,openf ingfa-trap;door31 (Figsr: 3 and 5) opposite the hopper where'sa-iddefect occurred,fl OneA 1 of said trap-doors is associated with each hopper or: source of signature supply, and thesameuare normally flush with theisur-v ac'eo a track or way 32 (Fig. 3)on `which rest stops `or pivotedmembe'rs 33", one of which ispivoted on the conveyer13-just to the yrear of each pair` of .signature-pregress'-f` ing pins k12.l `Preferably the' free end ofea'ch of these stopsor members 33 is provided with a roller 34, said roller-running-- freely along said track `or way 32 andover the trap-doors 31.

Accordingly, when one of saidvtrapdoorsy is `opened,the'roller 34 on the next pivoted member 33 passesl therethrough and.y said roller `continues -to move along the inside: of theY track orI way to the end thereof.` Aty an appropriate moment, saidrolle-r, through suitable mechanism, operates to elevate, the 1 deiective group as it is 'seized by its :clampy A'in the binding machine B, thus'preventing the operation of thebindinginstrumentali ties thereon.

As will be observedfrom an inspection 1;

of Fig.` 3,*said track or way is `provided wlth two parallel reaches, the lower ofiwhich 1s,des1gnated321and a vertical connectinoq reach32b,-alli.closely paralleling the patliV of movementngoi conveyor 13. lThe ypoint where thevconveyerA 13-passes downwardly (Fig. 3) :is at the end of the table 10 of the gathering machine proper. As said defective group passes from the table 10 on its way tothe clamp. inthe binding machine, the roller continuesits progress along the reaches 32"` and 32- until the defective group rests on leveling table 48 (Fig. 3) at which moment said roller 34 operates, through suitable mechanism, to prevent the binding in strumentallties from engagingthe defectlve;

group.

After the book leaves the gathering maf.

chine proper, it' passesto vthe rotary delivery D (Figs. 2v and 42), Where it is removed lat-r erally from the table 10 by means of liftrollers 35 .(Fig. 4).-coperating with large"4 rollers 36. -The books pass around the large rollers 36 to which ,they are held by feed belts 37, iinally passing down between rollers 38 and `39 and beingdeposited onk their rear edfresinv ankinfeed trough or; Vway 40 along wliidch theyare fed by a chain 41pmvdedwith pushersf12 that 'engage the booksl and' progress themv .tothe binding machine.-

k'llhisg binding machine preferably consists.

of 5 an endless train zo'r book clamps, ,each

clampfl consisting of van-`l inner: member: L4-? and 'a' Amovable .outer-2 or presserfmember '45.21. Eachrclampl memberie isfmounted to sepa.` rate from'lland vappro achlto L its complemenetary clamp memberi44, vfor,discharging, receiving andrlamping the books; and arpow.- erful spring fdevice'f'l :is provided' for each clamp to `hold it cl'osedi'rmly upon: the book,r until thefclampnisiopened, as byy rail 47.

As each book reaches the itopfsfof fthe`r in;Y clined?L trough@ 40, under .the 1 influence f. of itspusherefit commencesy tolenter cornerv-` wise' inrthe open b'ookclampY and finally comesvtof` aapoint above. af. stationarylevelingtable: 48 adj ustably secured at :the top'y otra. .f

stationary bracketV 49; TheVA ciampiV guide rodi` 50 pushes th'ewbook forward withthe" clamp?y until. thef: automatic' closing` ot' thel Y same (duetothe-terminationrofthe rail 47) causes the boolrto-be;1irmly grasped between the clamp= mem`berswhich` occurs before'. the book 'has-.passed beyond fthe .position in which 'itE is'fA supported: onf the levelingptable;4 Ii?. the signature lgroup yis defective, itisy the objectief the'inventi'on'to prevent the op eration thereon of the:binding'instrumental itiesfindicatedonzFig. 1; Asiswell understood 'l in thezart, and -as` f ullydescribed f .in y

Patent 'No-i. 1,248,252, these bindingdevices` operatefony the lower exposed edgesotthel groupsv'that project from the' clamps. In the `particular embodiment of the'inventive idea here disclosed, the defective groupis elevated as it .rests-'on the leveling tables48 sothat, when theclamp closes, the edges of the signatures-ot the defective group, .whichV are normally operated on bythe bindingiinl strumentalities, will `be out etrange of the same; that is to-say. the defectivegroup.V

will be clamped in such an` elevated kposition thatfthe binding means'cannot perform their normal unctions.-

,The 'elevation ofthe leveling table may be eiiected in various ways, onesimple an d pref ferred method being to utilize an electromagnet 51 suitably secured to the machineframe adjacent said' table. As herein shown, the core or plunger 52 is connected to one arm of a lever.l 53 pivoted to arm l54, the other arm of said leverbeing connected to,l one arm 55' of Va second lever pivoted to bracket 56. The .other arm 5701? said second lever is connected to a cross-piece 58 which carries' two rods 59 `on which theleveling table is mounted. When the magnetis enf ergized, the table will be elevated, through the described connections,.to the dotted line position shown inV Fig. `3, thus elevating the defectivey group to the Vdotted line position shown. e Y Y The energization ofthe magnet atthe proper time when the defectiife groupjis.y

resting on the leveling table is effected by means of' the roller 34 closing a circuit through themagnetj 51, conductors 60 andi \a second` circuit through an electromagnetV 6l, and a suitable source of electrical energy 62. The circuit is closed by roller 34v engaging a contact vpiece 63 and movin-gA the same into engagement with terminal 64. "The contact piece is normally held in the position shown in Fig. 3 by spring 65.

The duration of the elevation of the lev cling table 48l is brief, being simply suii-V` cient to extend over the v"ing of the clamp.'4 t

`At an appropriate time after the circuit period of vthe closis closed by the stop 34 to elevate the de-v fective group on the leveling table, said pivoted stop or member 34 preferably closes controls theoperation of the feeder andI Y which may be also operated manually. The

electromagnet is f energized to swing thel lower end of the lever'V against the tension of spring 69, thus tripping the 4feeder sothat no cover willV be fed. Thek circuitl through Ymagnet 66 is closed bythe action of stopVV 34 elevating contact piecev 70 V(Fig. 3) into engagement with a terminal 7l connected to conductor 72. The circuitis completed through conductor 73', connected to energy, as battery 74. Y

it is elevatedrat the leveling table 48 until it reaches thecover-applying point; andthel cover travels a certain distance from the cover supply to the cover-applying point. The magnet should be energized toY trip the feeder, 'for example, when the defective group has reached a point which is the same distance from the cover-applying point as the cover supply is from that point, provided the cover and the defective group are Y traveling at the same speed. The time when the cover-feeder magnet is energized would vary in different machines. 1

Preferably the trackV or way 32 terminates just beyond the circuit-closing''point` 7 0-71, whereupon the roller 34 assumes a position suchy that itrwill again ride on they non-,operativel side of the track orway.,`

Let us assume that the group X (Figgfl) is a defective group. It will `be'observed that the clamp is about to` close inasmuch as `roller 45a is near the end of the track.

The defective group is elevated in the clamp at this time and the clampingwill be ef. {fected as soon as the rollerfpasses the end Y of the rail. Thereuponthe defective group .will be carried past, but out: of the rangevi ofoperation o f, the trimming', roughening, grooving, adhesive-applying, strip-attach,

` ing, cover-applying, andcover-breakingY dei vices (when they invention is used with ag machine of the perfect binding type) and. will be nally discharged, by the opening:

of the clamp, into the delivery with the good books, the unbound signatures ofv the, defective group'being-thereafter picked out. from among the good books'by an operator; the cover-feed'mechanism being preferably tripped, as above indicated, at the appro@ priate time. v,

expression of the inventiveidea has been herein described and illustrated in considerable detail, it is to be understood that the.

invention is not limi-ted thereto, but that the inventive idea is susceptible of various elec* ters its clamp. Y

It is to be understood thatby-imperfect signature,V as 'the term is hereinbefore used, is meant one that Ais too thick," too thin, more than'one;A or a torn or reversed signature, etc.;`and by defective'signature group is meant one into which asignature l t such as designated has beenincluded, or a As clearly indicated in Fig. l, the de# i ffective group travels a certain distance after group that lacks one or more signatures.

What' is claimed is leveling table over lwhich said clamp Amoves and onv which signature-groups rest, means for assembling signatures into groupsfrom a plurality of sources of sheet or signature While, for the purpose of clearness, one.

10o l. ln combination, a traveling clamp, a

thereby, means for introducing a group ofV signatures into said clamp, detecting means associated with each signature lsource and operating to set oneof said stops orl tripsv should an imperfect signature be seized, and means controlled by said set stop elevating saidtable when -a defective groupV is restingV thereonV and just before the clamp closes on: said group.

'2.' In combination, a ;travelingclamp, a: Y

leveling table over which said clamp moves and'onwhich signature-groups rest, means for assembling signatures into groups Vfrom a plurality of sources ofsheet or signature supply including a main conveyer provided .Y Y

with a plurality of pivoted stops or trips carried thereby, meansfor introducing a group of signaturesinto'said clamp,A detecting meansassociated with each signature source and operating to set one of Vsaid stopsV or trips shouldan imperfect signature vbe seized, and means controlled bysaidset stop elevating said table when a defective group `is resting thereon and just before theclamp closes on said group.

v8. In combination, traveling clamp, a

leveling table over vwhich said'clamp moves yand on which signature-groups rest, means Ilevelingtable over which said clampmoves and .on which signature-groups rest, means for assembling rsignatures into groups from a plurality oi sources of sheet or signature supply including a main conveyer provided fwitha plurality of stops or trips carried thereby, means for introducing a rgroup of signatures into said clamp, detecting means associated with each signature source and loperating toiset one of said stops-ortrips should an imperfect signature be seized, an electromagnet mounted adjacent said table, an electric circuit including said magnet and a sourceof electrical energy and adapted to be closed by a set stop or trip when a defectivesigiiature group is resting on said table and justbeiore the clamp closes on said group, and lever connections between said magnet and table.

.5. In combination, a traveling clamp, a leveling table over which said clamp moves and on which signature-groups rest, means for. assembling signatures into groups from a plurality of sources of sheet or signature supply including a main kconveyor provided with a plurality of stops or trips carried thereby, means l,for'introducing a group of signatures into said clamp, detecting means associated with each signature source and operating to set one or' said stops or trips should an imperfect signature be seized, means controlled by said set stop elevating said table when a defective group is resting thereon and just before the clamp closes on said group, a cover-feed mechanism, and means controlled by said set stop Jfor tripping said cover-feed to prevent a cover being fed to said defective signature group.

6. In combination, a traveling clamp, a leveling table over which said clamp moves and on which signature-groups rest, means for assembling signatures into groups from a plurality of sources of sheet or signature supply including a main conveyer provided with a plurality of pivoted stops or trips carried thereby, means for introducing a group or signatures into saidclamp, detecting means associated with each signature source and operating to set one of said stops or trips should an imperfect signature be seized, meansl controlled by'said'cset stop1 elevating said table when a defective group is resting thereon and just before ,the clamp closes on said group, a .cover-feed mechanism, and means controlled by said set stop i'ior'tripping said cover-feed to preventa cover being V-ed to said defective signature group.

7. In combination, a travelingl clamp, a leveling table over which said clamp moves and on which signature-groups rest, means for assembling signatures into groups from a plurality of. sources of sheet or signature supply including amain conveyer, provided with a plurality of stops or trips.' carried thereby, means for introducing a group of signatures into said clamp, detecting means associated with eachsignature source and operating to set one of said stopsor Atrips should an imperfect signature be seized, electrical means controlled by said set stop elevati'ngl said table when a defective group is Yresting thereon and just bei'ore the clamp closes on said group, a cover-feed mechanism, and means controlled by` saidysetl stop for ,tripping said cover-feed to prevent a cover lbeing fedl to said defective signature group.

8. In combination, atraveling clamp,.a leveling `table over which said clamp moves and on which signature-groups rest, means for assembling signaturesY intogroups' from a plurality of sources of sheetr or signature supply including, a main conveyer provided with a plurality `of stops or trips. carried thereby, means yfor introducing a group of n, signatures into said cla-mp, detecting vmeans associated with each signature source and operating to set one or' said stops or trips should an imperfect signature be ,sei/Led,` an electromagnet mounted adjacent said table, an electric circuit including said magnet and a source oiC electrical `energy. and4 adapted to be closed by aset ystop or tripV whena defective signature groupis resting on said table and just before the clamp closes on said group, lever connections between said magnet and table, a cover-feed mechanism including a trip-lever, au electroinagnet for swinging said lever, and circuit includingV said magnet, said circuit being adapted to be closed by said set stop.

9. In combination, an endless series of book-conveying clamps, binding instrumentalities arranged in association therewith and adapted to operate on the groups of signatures in said clamps, means for assembling sienatures into groups including a main convey/er carrying a plurality of stops or trips, means for introducino' said groups into said clamps, means for detecting the V.ai

presence of an imperfect signature as the groups are being assembled, said means operating to render one of said stops or trips operative,and mechanism controlled by said setV stop and operating on the group into which a defective signature enters to prevent the operation of the binding instrumentalities on said group.

10. In combination, an endless series of book-conveying clamps, means for applying covers to the books in said clamps, means for assembling signatures into groups including a main conveyer carrying a plurality of stops or trips, means for introducing said groups into said clamps, means for detecting the presence of an imperfect signature as the groups are being assembled,

said means operating to render one of said stops operative, and lmechanism 'controlled by said set stop for preventing the Vjfeed of a cover to said defective signature group.

ll. In combination, an endless series of book-conveying clamps, binding instrumentalities arranged in association therewith and adapted tov operate on the groups of signatures in said clamps, means for-assembling signatures into groups including a main conveyer carrying a plurality of stops or trips, means for introducing saidA groups into'said clamps, means for detecting the presence of an imperfect signature as the groups are being assembled, said means operating to render one of said stops or trips operative, a leveling table over Which said clamps move and on which signature groups rest, and mechanism controlled by said set stop and elevating said table when a defective group is resting thereon just before the clamp closes on said group.

12. In combination, an endless series of book-conveying clamps, binding instrumentalities arranged in association therewith and adapted to operate on the groups of signatures'in said clamps, means for assembling signatures into groups including a main conveyer carrying a plurality of stops or trips, means for introducing said groups into said clamps, means for detecting the presence of an imperfect signature as the groups are being assembled, said means operating to render one of said stops or trips operative, an electromagnet mounted adjacent said table and adapted to elevate'the same, and an electric circuit including said magnet and a source of'electrical energy and adapted to be closed by a set stop or tripV When a'defective signature group is resting on said table'and justfbefore the clamp-V means controlled by said set stop for tripping said cover-feed mechanism to prevent a cover being fed to said defective signature group.

14. In combination, an endless series of book-conveying clamps, binding instrumentalities arranged in association therewith and adapted to operate on the groups of signatures in said clamps,'means for assembling signatures into groups including a main conveyer carrying a plurality of stops or trips, means for introducing said groups into said clamps, means vfor detecting the presence of an imperfect signature as the groups'are being assembled, said means operating to render one of said stops or trips operative, a cover-feed mechanism including a trip-lever, an electromagnet for swinging said lever, and an electrical circuit including said magnet, said circuit being adapted to be closed by said set stop.

In testimony whereof I have signed this specification.

CHARLES GITZENDANNER. 

